TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.23.15 TI - A Light Touch JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 23 IS - SP - 15 EP - PY - 2009/05/08/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.23.15 A1 - Monroe, Don ER -